package day02;

public class VarDemo {
    public static void main(String[] args) {
        int a = 7;
        int b,c,d;
        int e = 250;
        int f;
        int g=1,h=3,i=6,j=9;
        int k = 5;
        int m = k+10;
        System.out.println(m);
        System.out.println("m");

        int balance = 5000;
        balance = balance+1000;//1000
        System.out.println(balance);//6000
        balance = balance-2000; //2000
        System.out.println(balance);//4000
        //4)变量的命名
        int a1,a_5$,_3c,$_7;
        //int a*b;
        //int 1a;
        //int aa = 5;
        //System.out.println(aA);
        //int class;
        //int 年龄；
        //int nianLing;
        int age;
        int score,myScore,myJavaScore;

    }
}
